<template>
  <div class="app-container">
    <el-form ref="queryRef" :inline="true" label-width="68px">
      <el-form-item label="分类">
        <el-cascader
          :props="categoryProps"
          style="width: 100%"
          v-model="queryCategoryIdList"
          @change="handleCategoryChange" />
      </el-form-item>

      <el-form-item label="品牌">
        <el-select
          class="m-2"
          placeholder="选择品牌"
          size="small"
          style="width: 100%"
          v-model="queryParams.brandId">
          <el-option
            v-for="item in brandList"
            :key="item.id"
            :label="item.name"
            :value="item.id" />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery"
          >搜索</el-button
        >
        <el-button icon="Refresh" id="reset-all" @click="resetQuery"
          >重置</el-button
        >
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plainicon="Plus" @click="handleAdd"
          >新增</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="Edit"
          :disabled="single"
          @click="handleUpdate"
          >修改</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="Delete"
          :disabled="multiple"
          @click="handleDelete"
          >删除</el-button
        >
      </el-col>
      <right-toolbar></right-toolbar>
    </el-row>

    <!-- 数据展示表格 -->
    <el-table :data="categoryBrandList" v-loading="loading"
    @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="分类名称" prop="categoryName" />
      <el-table-column label="品牌名称" prop="brandName" />
      <el-table-column prop="logo" label="品牌图标" #default="scope">
        <img :src="scope.row.logo" width="50" />
      </el-table-column>
      <el-table-column prop="createTime" label="创建时间" />
      <el-table-column
        label="操作"
        align="center"
        class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button
            link
            type="primary"
            icon="Edit"
            @click="handleUpdate(scope.row)"
            >修改</el-button
          >
          <el-button
            link
            type="primary"
            icon="Delete"
            @click="handleDelete(scope.row)"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页条组件 -->
    <pagination
      v-show="total > 0"
      :total="total"
      v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize"
      @pagination="getList" />

    <!-- 添加或修改分类品牌对话框 -->
    <el-dialog
      :title="title"
      v-model="open"
      :rules="rules"
      width="500px"
      append-to-body>
      <el-form ref="categoryBrandRef" :model="form" label-width="80px">
        <el-form-item label="分类" prop="categoryIdList">
          <el-cascader :props="categoryProps" v-model="form.categoryIdList" />
        </el-form-item>
        <el-form-item label="品牌" prop="brandId">
          <el-select
            v-model="form.brandId"
            class="m-2"
            placeholder="选择品牌"
            size="small">
            <el-option
              v-for="item in brandList"
              :key="item.id"
              :label="item.name"
              :value="item.id" />
          </el-select>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="CategoryBrand">
import { ref, reactive, toRefs } from "vue";
import {
  listCategoryBrand,
  addCategoryBrand,
  getCategoryBrand,
  updateCategoryBrand,
  delCategoryBrand,
} from "@/api/product/categoryBrand";
import { getBrandAll } from "@/api/product/brand";
import { getTreeSelect } from "@/api/product/category";
const { proxy } = getCurrentInstance();

// 定义搜索表单数据模型
const brandList = ref([]);
const showSearch = ref(true);

const props = {
  lazy: true,
  value: "id",
  label: "name",
  leaf: "leaf",
  async lazyLoad(node, resolve) {
    //级联组件
    //当第一次点击 加载易积分类的时候node.value是没有值的
    //只有加载完一级1列表后，再点击lazyload才有node.value的值 parent_id
    if (typeof node.value === "undefined") {
      node.value = 0;
    }
    // 加载数据的方法
    const { code, data, message } = await getTreeSelect(node.value);
    data.forEach((category) => {
      category.leaf = !category.hasChildren;
    });

    resolve(data); // 返回数据
  },
};
const categoryProps = ref(props);

// 定义表格数据模型
const categoryBrandList = ref([]);

// 分页条数据模型
const total = ref(0);
//加载数据时显示的动效模型
const loading = ref(true);
const data = reactive({
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    brandId: null,
    categoryId: null,
  },
  form: {
    id: null,
    brandId: null,
    categoryId: null,
    categoryIdList: [],
  },
  rules: {
    categoryIdList: [
      { required: true, message: "分类不能为空", trigger: "blur" },
    ],
    brandId: [{ required: true, message: "品牌不能为空", trigger: "blur" }],
  },
});
const { queryParams, form, rules } = toRefs(data);
//定义一个查询时的数组
const queryCategoryIdList = ref([]);

//新增与修改弹出层控制模型
const open = ref(false);
//新增与修改弹出层标题模型
const title = ref("");
const ids = ref([]);
const single = ref(true);
const multiple = ref(true);

// ==================================================================================================
//删除按钮操作
function handleDelete(row) {
  const _ids = row.id || ids.value;
  proxy.$modal
    .confirm("是否确认删除分类品牌编号为" + _ids + "的数据项？")
    .then(function() {
      return delCategoryBrand(_ids);
    })
    .then(() => {
      getList();
      proxy.$modal.msgSuccess("删除成功");
    })
    .catch(() => {});
}
//多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map((item) => item.id);
  single.value = selection.length != 1;
  multiple.value=!selection.length;
}

//修改按钮操作
function handleUpdate(row) {
  reset();
  const _id = row.id || ids.value;
  getCategoryBrand(_id).then((response) => {
    form.value = response.data;
    open.value = true;
    title.value = "修改分类品牌";
  });
}

//提交表单
function submitForm() {
  proxy.$refs["categoryBrandRef"].validate((valid) => {
    if (valid) {
      form.value.categoryId = form.value.categoryIdList[2];
      if (form.value.id != null) {
        updateCategoryBrand(form.value).then((response) => {
          proxy.$modal.msgSuccess("修改成功");
          open.value = false;
          getList();
        });
      } else {
        addCategoryBrand(form.value).then((response) => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}
//取消提交
function cancel() {
  open.value = false;
  reset();
}

//新增按钮操作
function handleAdd() {
  reset();
  open.value = true;
  title.value = "添加分类品牌";
}

//表单重置
function reset() {
  form.value = {
    id: null,
    brandId: null,
    categoryId: null,
    categoryIdList: [],
  };
  proxy.resetForm("categoryBrandRef");
}

//重置
function resetQuery() {
  queryCategoryIdList.value = [];
  queryParams.value.categoryId = null;
  queryParams.value.brandId = null;
  handleQuery();
}

//搜索按钮操作
function handleQuery() {
  queryParams.value.pageNum = 1;
  getList();
}

// 查询条件分类
function handleCategoryChange() {
  if (queryCategoryIdList.value.length == 3) {
    queryParams.value.categoryId = queryCategoryIdList.value[2];
  }
}

//查询分页品牌列表
function getList() {
  loading.value = true;
  listCategoryBrand(queryParams.value).then((response) => {
    categoryBrandList.value = response.rows;
    total.value = response.total;

    loading.value = false;
  });
}

function getBrandAllList() {
  getBrandAll().then((response) => {
    brandList.value = response.data;
  });
}
getBrandAllList();
getList();
</script>
